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    <title>Document</title>
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    <script>
      /*
          Object.fromEntries(); //Object.fromEntries() 方法把键值对列表转换为一个对象
          */
      const entries = new Map([
        ['a', 'a'],
        ['b', 'b'],
      ]);
      const obj = Object.fromEntries(entries);
      console.log(obj); //{a: 'a', b: 'b'}
    </script>
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